45881644618854 has 48 divisors (see below), whose sum is σ = 108529619284944. Its totient is φ = 13893003590400.

The previous prime is 45881644618811. The next prime is 45881644618871.

45881644618854 is a `hidden beast` number, since 4 + 5 + 8 + 81 + 6 + 4 + 461 + 8 + 85 + 4 = 666.

45881644618854 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87446799 + ... + 87969914.

It is an arithmetic number, because the mean of its divisors is an integer number (2261033735103).

Almost surely, 2^{45881644618854} is an apocalyptic number.

45881644618854 is an abundant number, since it is smaller than the sum of its proper divisors (62647974666090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45881644618854 is a wasteful number, since it uses less digits than its factorization.

45881644618854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175418053 (or 175418050 counting only the distinct ones).

The product of its digits is 943718400, while the sum is 72.

The spelling of 45881644618854 in words is "forty-five trillion, eight hundred eighty-one billion, six hundred forty-four million, six hundred eighteen thousand, eight hundred fifty-four".